【正文】 er future direction. Industrial PC software is in the process of industrial automation control system of a key application. Hardware performance and the improvement of the drop in prices, as well — 7 — as standardization and greater efficiency, better graphics and the use of the operating system to promote industrial PC software is an important factor in development. At present, the rapid development of industrial PC software on the market has thousands of independent software development pany can supply in the industrial PC running on industrial process control configuration software package to meet the rapid growth of the industrial user needs. Industrial PC application of industrial process control software packages are running on the configuration of OS / 2, Windows, and UNIX operating system standard. Industrial process control applications have emerged in large quantities, software development panies can provide a large number of industrial PC on the run for the PLC, DCS, such as industrial automation and control system configuration tools and graphical user interface software. Many PLC, DCS manufacturers development of the software configuration tool for automatic control system has bee an important ponent. They used to replace dedicated industrial PC workstations, for the creation of realtime database, the control loop, graphic footage showed police records, realtime and historical trend data recording and process control, simulation, and other tasks. Now, for the process of surveillance and control, unit control, factory data collection, process optimization control, process control, simulation, statistical qualitycontrol (SQC), the Statistical Process Control (SPC) and expert system for the control of industrial automation and control package has been tremendous developments. DAE applications such as IBM39。 Moore pany Mycro HART door connector can support 256 pointtopoint connections or over 480 points connected intelligent transmitter。 middle layer to use Mini MAP, IEEE , Ether or Proway。 — 1 — 本科生畢業(yè)設(shè)計(jì) (論文 ) 外 文 翻 譯 原 文 標(biāo) 題 The characteristics and trends of PLC DCS and industrial PC 譯 文 標(biāo) 題 PLC、工業(yè) PC 與 DCS 的特點(diǎn)與趨勢(shì) 作者所在系 別 機(jī)械工程系 作者所在專業(yè) 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 作者所在班級(jí) 作 者 姓 名 作 者 學(xué) 號(hào) 指導(dǎo)教師姓名 指導(dǎo)教師職稱 副教授 完 成 時(shí) 間 2020 年 12 月 07 — 2 — 譯文標(biāo)題 PLC、工業(yè) PC 與 DCS 的特點(diǎn)與趨勢(shì) 原文標(biāo)題 The characteristics and trends of PLC, DCS and industrial PC 作 者 Charles 譯 名 查爾斯 國(guó) 籍 美國(guó) 原文出處 Nuts and Volts 2907 The characteristics and trends of PLC, DCS and industrial PC ABSTRACT: At present, widely used in industrial automation systems of the three large industrial PC, DCS and PLC. Here, for their economic and technological standards and development trends described. KEYWORDS: PLC PC DCS automation trends First, the characteristics and Application of PLC 1. PLC Application Early PLC (Programmable Logic Controller, PLC), mainly to replace relay logic control to achieve. With puter technology, munications technology and the rapid development of automatic control technology, the PLC will be the traditional relay control technology and the emerging puter technology and munications technology integration, with high reliability, strong function and flexible, Programming simple, easy to use and a series of advantages, as well as good performance of the industrial environment and control targets of performance in industrial production in a wide range of applications. 1969, the United States Digital Equipment Corporation (DEC) developed the world39。 equipment is used at the lowest level fieldbus or bus to connect the transmitter. Open systems change the past DCS manufacturers selfcontained closed situation, and make industrial users in the application of automation hardware and software have a greater choice. DCS is the new generation of multilevel multiregional development. With multilevel munication works as a tool for the entire factory or enterprise information management and production control integration, the lowest level in the — 10 — factory using digital equipment integrated into the scene DCS, in the solution of local senior management of various types of puter works and interconnection, thus achieving optimal scheduling, decisionmaking, as well as the overall production process optimization. This production with the use of puter programs, product development, production processes and the material flow and information flow, integrated management system requirements for the development of CIMS. DCS use of open systems gradually to the direction of CIMS is integrated automation control system integrated a basic method. (2) workstations and graphical user interface features strengthen the operating station Workstations (including industrial PC workstations) and the use of graphical user interface, making recognizable DCS operator station. Many DCS manufacturers will be more DEC, SUN and panies such as Apollo Unix workstation tasks for the operator interface and control certain tasks, and corresponding use of the Motif, Penlook, X Window, OS / 2, Windows and other graphical user interface. Workstations costeffective prices, high efficiency, and provides a userfriendly operator interface equipment. Highfunction workstations and highresolution graphics equipment used, making operation to handle the greater amount of information, higher quality information processing, and use the mouse, touch screen, the cursor to the balltype, as well as a number of other humanmachine engineering. (3) a 32 or 64bit processor hardware performance improved 32 or 64bit microputer development and use, is a milestone in the development of puter technology, the DCS hardware performance has a significant impact on the improvement.